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Finding the Fourth Proportional to 442,974.80, 611,363.64 and 251,951.30

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Solution

The fourth proportional to 442,974.80, 611,363.64 and 251,951.30 is: 347,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,974.80 : 611,363.64 = 251,951.30 : x
  2. Step 2: Convert to fraction form
    442,974.80/611,363.64 = 251,951.30/x
  3. Step 3: Cross multiply
    442,974.80x = 611,363.64 × 251,951.30
  4. Step 4: Simplify right side
    442,974.80x = 154,033,863,870.73
  5. Step 5: Solve for x
    x = 154,033,863,870.73/442,974.80
  6. Step 6: Final answer
    x = 347,726.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.